EP3981506B1 - Incubator with orbital shaker - Google Patents
Incubator with orbital shaker Download PDFInfo
- Publication number
- EP3981506B1 EP3981506B1 EP20200195.4A EP20200195A EP3981506B1 EP 3981506 B1 EP3981506 B1 EP 3981506B1 EP 20200195 A EP20200195 A EP 20200195A EP 3981506 B1 EP3981506 B1 EP 3981506B1
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- Prior art keywords
- incubation chamber
- orbital
- shaker
- bushing
- bearing
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- 238000011534 incubation Methods 0.000 claims description 80
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 230000033001 locomotion Effects 0.000 description 13
- 238000007789 sealing Methods 0.000 description 11
- 238000013461 design Methods 0.000 description 8
- 238000004113 cell culture Methods 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000004659 sterilization and disinfection Methods 0.000 description 4
- 239000012620 biological material Substances 0.000 description 3
- 238000011109 contamination Methods 0.000 description 3
- 238000005202 decontamination Methods 0.000 description 3
- 230000003588 decontaminative effect Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011194 good manufacturing practice Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 210000004962 mammalian cell Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M27/00—Means for mixing, agitating or circulating fluids in the vessel
- C12M27/16—Vibrating; Shaking; Tilting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
- B01F31/20—Mixing the contents of independent containers, e.g. test tubes
- B01F31/22—Mixing the contents of independent containers, e.g. test tubes with supporting means moving in a horizontal plane, e.g. describing an orbital path for moving the containers about an axis which intersects the receptacle axis at an angle
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M23/00—Constructional details, e.g. recesses, hinges
- C12M23/02—Form or structure of the vessel
- C12M23/08—Flask, bottle or test tube
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/12—Means for regulation, monitoring, measurement or control, e.g. flow regulation of temperature
- C12M41/14—Incubators; Climatic chambers
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Zoology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Sustainable Development (AREA)
- Biomedical Technology (AREA)
- Biotechnology (AREA)
- Biochemistry (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Microbiology (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Analytical Chemistry (AREA)
- Clinical Laboratory Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Description
- The present disclosure relates to orbital incubator shakers, in particular, devices that have functions of an incubator and an orbital shaker.
- Known orbital shakers are used in laboratory environments to agitate assays or test samples with orbital motion. Orbital incubator shakers include an incubation chamber for keeping biological materials during the agitation at predetermined environmental conditions. Such known orbital incubator shakers provide a wide range of capabilities to meet specific growth requirements by controlling a variety of environmental parameters inside the incubation chamber, such as temperature, relative humidity, and carbon dioxide concentration.
- All known orbital incubator shakers, however, have certain drawbacks, which prevent optimal usage of a shaking device inside an incubator.
- For example, document
US 2010/0330663 A1 concerns an incubator with a shaker device. The incubator comprises an incubation chamber for cultivating cells and an adjacent device chamber. A part of the shaker device including a shaking table, a drive arm, a drive shaft and eccentric rotary joints is located inside the incubation chamber, whereas another part of the shaker device including a motor and a drive belt is located in the adjacent device chamber. A removable base plate carrying the entire drive assembly separates the incubation chamber from the device chamber. A seal is provided between the base plate and the bottom of the incubation chamber. The seal and the drive belt are wearing parts which have to be exchanged regularly. By removing the base plate, the drive belt and the seal can be accessed and replaced. However, regular replacement of the seal and the drive belt requires relatively high maintenance efforts. Moreover, the structure of the removable base plate carrying the entire drive assembly is largely space-consuming. -
Document EP 1 626 082 B1 concerns a shaking system for a cell culture incubator. - The incubator comprises an incubation chamber and a device chamber below the incubation chamber. In the device chamber, a motor and a drive belt for rotating an axis, which performs eccentric movements in a horizontal plane, is located. At the free end of the axis, a shaking table for holding cell culture vessels is provided. In order to enable a shaking movement, a sealing between the incubation chamber and the device chamber is made as an elastic bellows type sealing. However, contamination can get from the device chamber into the incubation chamber due to cracks that may occur over time due the motion of the elastic bellows type sealing. Thus, regular replacement of the seal and the drive belt requires relatively high maintenance efforts. Moreover, the motor and the drive belt are largely space-consuming.
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JP H10 108663 A claim 1 and concerns a micro-incubator and a method for promoting reaction and culture carried out using the micro-incubator. - The present disclosure provides an orbital incubator shaker which overcomes the above explained problems. The present invention is defined by
claim 1. Further aspects of the invention are defined in the dependent claims. - According to an aspect, there is provided an orbital incubator shaker comprising an incubator housing defining an incubation chamber, and an orbital shaker configured to shake a shaking table, wherein the orbital shaker comprises a rotary direct drive motor comprising a stator and a rotor comprising a rotor shaft, and an eccentric bearing unit mounted on the rotor shaft.
- The incubation chamber may be a kind of closed or closable chamber that enables keeping biological materials during agitation at predetermined environmental conditions. For example, the incubation chamber may be used for mammalian cell culturing. The shaking table may be placed in a fixed manner on the eccentric bearing unit. On the shaking table, a plurality of containers, for example, Erlenmeyer flasks, storing biological material may be releasable fixed and agitated.
- The eccentric bearing unit may guide the shaking table to be moved in elliptical orbits, in particular, in varying elliptical orbits. For this, the eccentric bearing unit may comprise closed ball bearings. The eccentric bearing unit may also comprise a mechanical guidance to provide the orbital motion with forced rotation. The eccentric bearing unit may be mounted in a fixed manner to the rotor shaft. It is also possible that the location of the eccentric bearing unit on the rotor shaft can be changed to different positions so that the shaking diameter of the orbital motions may be changed. For this, mechanical means for shifting and fixing the position of the eccentric bearing unit on the rotor shaft may be provided.
- The rotary direct drive motor may be a torque motor. The stator of the direct drive motor may surround the rotor and may comprise direct current electro-magnets and sensors, and the rotor may comprise at an outer circumferential surface permanent magnets. The electro-magnets of the stator may by switched by a control unit (e.g., a microprocessor) depending on the position of the rotor determined by the sensors. Since the rotary direct drive motor does not comprise any mechanical power transfer means (for example, a belt), there is close to no abrasion. Moreover, rotary direct drive motors provide the advantages of low noise, low power consumption, and low heat generation. Furthermore, since the motor speed of the rotary direct drive motor is the same as the shaking speed of the shaking table, the control unit may easily change the shaking speed of the shaking table. Specifically, the rotary direct drive motor ensures a high performing rotary movement regarding shaking speed (rpm) and load (kg) of the shaking table.
- Moreover, due to the structure of the eccentric bearing unit being mounted on the rotor shaft of the rotary direct drive motor, a compact design with a relatively small height difference between the rotary direct drive motor and the shaking table is provided, which helps to prevent strong vibrations at the shaking table.
- In order to increase the size of the incubation chamber, the stator is located outside the incubation chamber and the rotor shaft may extend from outside the incubation chamber towards the incubation chamber. Specifically, the rotor shaft may extend from outside the incubation chamber into an area of the incubation chamber.
- Furthermore, the rotary direct drive motor is located outside the incubation chamber and the rotor shaft may extend from outside the incubation chamber towards the incubation chamber.
- According to the invention, the incubator housing comprises at its base a base element extending into the incubation chamber. Thus, the base of the incubator housing may not only be a base plate, but may be a base plate with a base element having a convex surface facing the incubation chamber. Within the base element, an opening for fixing the orbital shaker may be present. Thus, an orbital incubator shaker having a compact design may be provided.
- The base element may comprise a horizontal base element and an extension base element, which extends between the base and the horizontal base element. Moreover, the horizontal base element may comprise the opening at which the orbital shaker may be mounted.
- In order to provide a compact and stable design of the orbital incubator shaker, the stator is located in a space outside the incubation chamber which is defined by the base element. In this case, the rotor shaft may extend from the space through the opening provided in the base element (i.e., the horizontal base element) towards the incubation chamber.
- Furthermore, the rotary direct drive motor is located in a space outside the incubation chamber which is defined by the base element.
- The orbital incubator shaker may further comprise a bushing mounted to the base element and configured to fix the orbital shaker to the base element of the incubator housing. The bushing may be mounted at the opening of the base element (i.e., the horizontal base element). Thus, even when shaking heavy loads, strong vibrations at the shaking table may be prevented.
- The orbital incubator shaker may further comprise a first bearing provided between the rotor shaft and the bushing, and a second bearing provided between the rotor shaft and the bushing, wherein the second bearing is located at a location of the bushing that is extended into the incubation chamber and the first bearing is located outside the incubation chamber. The first and second bearings may be ball bearings. By means of the first and second bearings, the rotor shaft may be supported at the bushing and rotate within the bushing. This arrangement of the first and second bearings further helps to prevent strong vibrations at the shaking table.
- In order to seal the inside of the incubation chamber from the outside of the incubation chamber and the stator, the first bearing and/or the second bearing may be sealed ball bearings. Each ball bearing may comprise a bearing isolator having a labyrinth seal design to enable sealing of the stator from the incubation chamber and additionally prevent lubricant leakage from the bearing.
- To further seal the inside of the incubation chamber from the outside of the incubation chamber, the rotor and/or the stator, a dynamic seal may be provided between the bushing and the eccentric bearing unit. Thus, the bushing, the dynamic seal, and the eccentric bearing unit may be configured to seal the stator and the rotor from the incubation chamber. For this, the incubator housing, the bushing, the dynamic seal, and the eccentric bearing unit may seal the incubation chamber. The dynamic seal may be configured such that it retains or separates moisture and fluids, keeps out contaminants, and contains temperature and climate in the incubation chamber. Moreover, it may create a barrier between moving and stationary surfaces in the orbital shaker. In particular, although the rotary direct drive motor only generates low heat, the dynamic seal helps to keep the temperature in the incubation chamber. The dynamic seal may be a contact seal bearing the seal against a mating surface under positive pressure, or a clearance seal operating with positive clearance so that there is no rubbing contact.
- In particular, to prevent a loss of cell cultures due to contamination, it is important to efficiently clean, disinfect and decontaminate the incubation chamber, i.e., all surfaces within the incubation chamber. For example, this is essential for a Good-Manufacturing-Practice- (GMP) compliant cell cultivation. Moreover, a precisely controlled climate in the incubation chamber is necessary to maintain optimal cell culture conditions. To fulfil these requirements, the stator and the rotor may be fully sealed from the incubation chamber. Thus, on the one hand, the sealing of the stator and the rotor from the incubation chamber by means of the incubator housing, the bushing, the dynamic seal, and the eccentric bearing unit helps to provide surfaces within the incubation chamber that can be easily cleaned, disinfected and decontaminated. On the other hand, the sealing of the heat-generating rotor and stator from the incubation chamber helps to facilitate controlling the temperature in the incubation chamber.
- The dynamic seal may comprise a lip seal mounted on the bushing. The lip seal may be a flexible lip and may point towards the incubation chamber to ensure keeping the incubation chamber clean and uncontaminated. The dynamic seal may further comprise a spring helping to keep the lip seal in contact with the eccentric bearing unit, e.g., a bearing base of the eccentric bearing unit. Preferably, the lip seal is an U.S. Food and Drug Administration- (FDA) approved tight-seal.
- To improve the sealing of the stator from the incubation chamber, an O-ring may be provided, which seals the bushing to the incubator housing. The O-ring may be provided at the bushing and seal the bushing to the horizontal base element of the base element.
- To provide an orbital incubator shaker having a compact design which at the same time enables a stable shaking, the stator may be located on and/or above a horizontal plane defined by the base of the incubator housing. Thus, for placing the orbital incubator shaker on the ground, the base, or an additional ground plate provided under the base, may be placed on the ground.
- Furthermore, the rotary direct drive motor may be located on and/or above a horizontal plane defined by the base of the incubator housing.
- To compensate centrifugal forces created by liquid masses stored in containers fixed on the shaking table, the orbital shaker may further comprise an adjustable counterweight mounted within the incubation chamber to the eccentric bearing unit. For example, the adjustable counterweight may be screwed to a bearing base of the eccentric bearing unit. The counterweight allows manual calibration in case of imbalance situations so that liquid stored in the containers may be shaken at high speed. The counterweight may also be adjusted in accordance with a shifting of the location of the eccentric bearing on the rotor shaft.
- Preferably, a diameter of the orbital movement of the shaking table may be between 19 and 50 mm. Further preferably, the rotation speed of the shaking table may be between 80 and 200 rpm with a maximum rotation speed of 400 rpm. Further preferably, the load to be shaken may be up to 25 kg.
- To ensure corrosion resistance, chemical resistance and easy cleaning of all surfaces within the incubation chamber, the bushing, the eccentric bearing unit with the mounted counterweight, the shaking table and/or an inner surface of the incubation chamber is made of stainless steel.
- On the shaking table, 153 pcs. to 5 pcs. Erlenmeyer flasks, which may be up to 365 mm high and may contain between 10 ml and 3000 ml of liquid, may be fixed in a releasable manner. To absorb respective lever forces during shaking, the eccentric bearing unit may comprise a bearing base mounted on the rotor shaft, two sealed bearings that are stacked above each other at the bearing base, and an eccentric supported by the two sealed bearings. In addition, the shaking table may be mechanically guided so that it performs an orbital movement instead of a circular movement. Alternatively, such stable movement may be obtained with two pairs of leaf springs.
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Fig. 1 is a cross-sectional diagram schematically illustrating an embodiment of an orbital incubator shaker. - Generally, all terms used herein are to be interpreted according to their ordinary meaning in the relevant technical field, unless a different meaning is clearly given and/or is implied from the context in which it is used. All references to a/an/the element, apparatus, component, means, step, etc. are to be interpreted openly as referring to at least one instance of the element, apparatus, component, means, step, etc., unless explicitly stated otherwise. Any feature of any of the embodiments disclosed herein may be applied to any other embodiment, wherever appropriate. Likewise, any advantage of any of the embodiments may apply to any other embodiments, and vice versa. Other objectives, features and advantages of the enclosed embodiments will be apparent from the following description.
- Some of the embodiments contemplated herein will now be described more fully with reference to the accompanying drawings. Other embodiments, however, are contained within the scope of the subject matter disclosed herein, the disclosed subject matter should not be construed as limited to only the embodiments set forth herein. Rather, these embodiments are provided by way of example to convey the scope of the subject matter to those skilled in the art.
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Fig. 1 is a cross-sectional diagram schematically illustrating an embodiment of an orbital incubator shaker. The orbital incubator shaker comprises an incubator having anincubator housing 1 defining anincubation chamber 2 and anorbital shaker 3. - The incubator may comprise further elements for operating the incubator which are not shown in
Fig. 1 , for example, a separate heating device for heating the air, fans that suck air into theincubation chamber 2 and other arrangements forcing the air to circulate throughout the whole chamber, temperature and climate control means, a user interface, etc. - The
incubator housing 1 comprises at its bottom abase 15, which may be placed on the ground. At a central location of thebase 15, abase element incubation chamber 2 is provided. Thebase element horizontal base element 20 and anextension base element 21, which extends between the base 15 and thehorizontal base element 20. Other convex shapes of thebase element horizontal base element 20, an opening is provided. When seen from above, the opening has a circular shape. Thehorizontal base element 20, theextension base element 21 and a plane corresponding to the base 15 define aspace 22 beneath theincubation chamber 2. Additionally, a base plate (not shown inFig. 1 ) may be foreseen below thebase 15, which closes thespace 22 and on which the orbital incubator shaker may be placed on the ground. - On the
orbital shaker 3, a shaking table 4 is releasable fixed. On top of the shaking table 4, threeErlenmeyer flasks 5 are releasable fixed. Within eachErlenmeyer flask 5, abiological liquid 6 is stored. When the shaking table 4 is shaken by theorbital shaker 3, thebiological liquid 6 is shaken. - The
orbital shaker 3 comprises a rotarydirect drive motor ball bearings bushing 13, alip seal 18, aneccentric bearing unit adjustable counterweight 23.Fig. 1 further shows acontrol unit 24 which controls the rotarydirect drive motor - The rotary
direct drive motor stator rotor stator axis elements 7 around whichmagnetic coils 8 are wound, and which act as electro-magnets. Thestator rotor rotor rotor shaft 9 and a plurality ofpermanent magnets 10 disposed at an outer circumferential surface of therotor shaft 9. Therotor shaft 9 extends from thespace 22 towards theincubation chamber 2. Furthermore, sensors (not shown inFig. 1 ) for determining the position of therotor rotor control unit 24 controls electric currents supplied to themagnetic coils 8 in order to rotate therotor direct drive motor control unit 24 are not shown in the schematic illustration ofFig. 1 . - For fixing the
orbital shaker 3 to theincubator housing 1, thebushing 13 is provided at an inner wall of the opening of thehorizontal base element 20 and on a surface of thehorizontal base element 20 facing theincubation chamber 2. Thebushing 13 has a cross sectional double-T-shape extending from thespace 22 through the opening into theincubation chamber 2. Thebushing 13 may be screwed to thehorizontal base element 20. For sealing thebushing 13 to thehorizontal base element 20 of theincubator housing 1, an O-ring 19 is foreseen at thebushing 13. The O-ring 19 is in contact with the surface of thehorizontal base element 20 facing theincubation chamber 2. - For supporting the
rotor shaft 9 at thebushing 13, thefirst ball bearing 16 is provided at a lower end of thebushing 13 between thebushing 13 and therotor shaft 9, and the second ball bearing 17 is provided at an upper end of thebushing 13 between thebushing 13 and therotor shaft 9. Thus, therotor shaft 9 together with thepermanent magnets 10 can be rotated by thestator second ball bearings - On top of the
rotor shaft 9, theeccentric bearing unit eccentric bearing unit base 14, twoball bearings 11 stacked upon each other, and an eccentric 12. The twoball bearings 11 are sealed ball bearings. - The bearing
base 14 comprises a tray-shaped part. The twoball bearings 11 are mounted inside the tray-shaped part of the bearingbase 14. In the cross-sectional view ofFig. 1 , it can be seen that the tray-shaped part is located apart from the center of the bearingbase 14. - The eccentric 12 comprises an inner shaft having a cylindrical shape which is supported inside the two
ball bearings 11 so that it may be rotated. Additionally, the eccentric 12 mechanically guides the shaking table 4 such that it moves in orbital motions. The eccentric 12 covers an upper part of the bearingbase 14, i.e., the tray-shaped part of the bearingbase 14, and the twoball bearings 11. On top of the eccentric 12, the shaking table 4 is placed. The shaking table 4 may be releasable fixed to the eccentric 12. - In another embodiment (not shown in
Fig. 1 ), mechanics may be provided at the eccentric 12, which enable the eccentric 12 to be moved to and locked at different positions to the left and/or right in the horizontal plane. Thereby, the shaking diameter of the orbital motions may be changed. - Attached to the bearing base 14 (for example, screwed to the bearing base 14) is the
counterweight 23. Thecounterweight 23 is adjustable in that its distance from the bearingbase 14 may be manually adjusted in order to counter imbalances due toheavy loads counterweight 23 may also be adjusted at the same time when the eccentric 12 is moved to and locked at different positions to the left and/or right in the horizontal plane. - The
lip seal 18 provides a sealing between thebushing 13 and the bearingbase 14. Thelip seal 18 is a flexible FDA-approved tight-seal and is mounted on thebushing 13. Thelip seal 18 points towards the bearingbase 14, and helps to keep theincubation chamber 2 clean and uncontaminated. - The
bushing 13, the O-ring 19, thelip seal 18 and the bearingbase 14 seal thestator rotor incubation chamber 2. Since the first andsecond ball bearings lip seal 18, second and third sealing layers for sealing thestator incubation chamber 2 can be provided. - In another embodiment (not shown in
Fig. 1 ), thelip seal 18 is omitted and at least the second ball bearing 17 is a sealed ball bearing. In this case, thebushing 13, the O-ring 19, and the second ball bearing 17 seal thestator incubation chamber 2. This embodiment has the advantage that no moving part of theorbital shaker 3 penetrates into theincubation chamber 2. - In order to facilitate cleaning, disinfection and decontamination of the orbital incubator shaker, the inner surface of the
incubator housing 1, thebushing 13, theeccentric bearing unit counterweight 23, the shaking table 4 may be made of stainless steel. Moreover, the outer surface of theincubator housing 1 or theentire incubator housing 1 may be made of stainless steel. Additionally, the surfaces of theorbital shaker 3 facing theincubation chamber 2 may be designed such that no hidden vaults or dead spaces are present. Specifically, all connections of the elements of theorbital shaker 3 are not only covered but also sealed. In particular, theorbital shaker 3 is designed to comply with the norm ISO 14159:2002 "Safety of machinery - Hygiene requirements for the design of machinery" such that all parts inside theincubation chamber 2 are accessible for cleaning and disinfection. - The above described embodiments provide some or all of the following advantages:
The orbital incubator shaker is designed in accordance with known hygienic design principles. The choice of material, surface quality and the absence of cavities allow for easy and thorough cleaning, disinfection and decontamination of the orbital incubator shaker, which allows GMP-compliant cell cultivation. - The encapsulation of the
orbital shaker 3 protects the rotarydirect drive motor incubation chamber 2. - Except the
lip seal 18, no rotating part penetrates into theincubation chamber 2. - The
orbital shaker 3 has a simple, space-saving and clean design, and theorbital shaker 3 may be easily dismantled, replaced and/or repaired. - The
direct drive motor - A small height difference between the
direct drive motor load
Claims (13)
- Orbital incubator shaker, comprisingan incubator housing (1) defining an incubation chamber (2), andan orbital shaker (3) configured to shake a shaking table (4), whereinthe orbital shaker (3) comprises
a rotary direct drive motor (7, 8, 9, 10) comprising a stator (7, 8) and a rotor (9, 10) comprising a rotor shaft (9), andan eccentric bearing unit (11, 12, 14) mounted on the rotor shaft (9), whereinthe incubator housing (1) comprises at its base (15) a base element (20, 21) extending into the incubation chamber (2),characterized in thatthe stator (7, 8) or the rotary direct drive motor (7, 8, 9, 10) is located in a space (22) outside the incubation chamber (2) which is defined by the base element (20, 21). - The orbital incubator shaker of claim 1, wherein
the stator (7, 8) or the rotary direct drive motor (7, 8, 9, 10) is located outside the incubation chamber (2) and the rotor shaft (9) extends from outside the incubation chamber (2) towards the incubation chamber (2). - The orbital incubator shaker of claim 1, wherein
the base element (20, 21) comprises a horizontal base element (20) and an extension base element (21), which extends between the base (15) and the horizontal base element (20). - The orbital incubator shaker of any of claims 1 or 3, further comprising
a bushing (13) mounted to the base element (20, 21) and configured to fix the orbital shaker (3) to the base element (20, 21). - The orbital incubator shaker of claim 4, further comprisinga first bearing (16) provided between the rotor shaft (9) and the bushing (13), anda second bearing (17) provided between the rotor shaft (9) and the bushing (13), whereinthe second bearing (17) is located at a location of the bushing (13) that is extended into the incubation chamber (2) and the first bearing (16) is located outside the incubation chamber (2).
- The orbital incubator shaker of claim 5, wherein
the first bearing (16) and/or the second bearing (17) is a sealed ball bearing. - The orbital incubator shaker of any of claims 4 to 6, wherein the orbital shaker (3) further comprisesa dynamic seal (18) provided between the bushing (13) and the eccentric bearing unit (11, 12, 14), whereinthe bushing (13), the dynamic seal (18), and the eccentric bearing unit (11, 12, 14) are configured to seal the stator (7, 8) and the rotor (9, 10) from the incubation chamber (2).
- The orbital incubator shaker of claim 7, wherein
the dynamic seal (18) comprises a lip seal mounted on the bushing (13). - The orbital incubator shaker of any of claims 4 to 8, further comprising
an O-ring (19) configured to seal the bushing (13) to the incubator housing (1). - The orbital incubator shaker of any of the preceding claims, wherein
the stator (7, 8) or the rotary direct drive motor (7, 8, 9, 10) is located on and/or above a horizontal plane defined by the base (15). - The orbital incubator shaker of any of the preceding claims, wherein
the eccentric bearing unit (11, 12, 14) comprisesa bearing base (14) mounted on the rotor shaft (9),two sealed bearings (11) that are stacked above each other at the bearing base (14), andan eccentric (12) supported by the two sealed bearings (11). - The orbital incubator shaker of anyone of the preceding claims, further comprising
an adjustable counterweight (23) mounted within the incubation chamber (2) to the eccentric bearing unit (11, 12, 14). - The orbital incubator shaker of claim 12, wherein
the bushing (13), the eccentric bearing unit (11, 12, 14) with the mounted counterweight (23), the shaking table (4) and/or an inner surface of the incubation chamber (2) is made of stainless steel.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20200195.4A EP3981506B1 (en) | 2020-10-06 | 2020-10-06 | Incubator with orbital shaker |
US17/495,067 US11959059B2 (en) | 2020-10-06 | 2021-10-06 | Incubator with orbital shaker |
CN202111172000.6A CN114381370A (en) | 2020-10-06 | 2021-10-08 | Incubator with rail-mounted rocking platforms |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20200195.4A EP3981506B1 (en) | 2020-10-06 | 2020-10-06 | Incubator with orbital shaker |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3981506A1 EP3981506A1 (en) | 2022-04-13 |
EP3981506B1 true EP3981506B1 (en) | 2024-03-27 |
Family
ID=72801292
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EP20200195.4A Active EP3981506B1 (en) | 2020-10-06 | 2020-10-06 | Incubator with orbital shaker |
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US2829528A (en) * | 1955-03-29 | 1958-04-08 | Fisher Scientific Co | Gyratory devices |
JPH10108663A (en) * | 1996-10-03 | 1998-04-28 | Taitec Kk | Microincubator, and promotion of reaction and culture using the same |
DE602004011334T2 (en) | 2004-08-13 | 2009-01-08 | The Automation Partnership (Cambridge) Ltd., Royston | Vibrator system for cell culture cabinet |
DE102006021852A1 (en) * | 2006-05-09 | 2007-11-15 | Infors Ag | Cabinet as well as processing method |
EP2000528A1 (en) * | 2007-06-04 | 2008-12-10 | The Automation Partnership (Cambridge) Limited | Shaking apparatus for cell culture incubator or the like |
DE102008010780B3 (en) | 2008-02-25 | 2009-10-15 | Sartorius Stedim Biotech Gmbh | Incubator with shaker |
CN102807953A (en) * | 2012-08-14 | 2012-12-05 | 中国人民解放军南京军区南京总医院 | Rotary-type micro-dynamic incubator |
CN104280286A (en) * | 2013-07-12 | 2015-01-14 | 四川省新成生物科技有限责任公司 | Oscillator for uniformly mixing sputum specimen and operating method of oscillator |
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